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    • 5. 发明授权
    • Method for recovering nickel from sulfuric acid aqueous solution
    • 从硫酸水溶液中回收镍的方法
    • US08580213B2
    • 2013-11-12
    • US13057683
    • 2010-02-02
    • Hiroshi KobayashiHirofumi ShojiNorihisa TokiKeiji KudoTatsuya Higaki
    • Hiroshi KobayashiHirofumi ShojiNorihisa TokiKeiji KudoTatsuya Higaki
    • B01D11/00
    • C01G45/003C01G51/003C01G51/04C01G53/003C01G53/04C22B3/44C22B23/043C22B23/0461Y02P10/234
    • A method for recovering nickel from sulfuric acid aqueous solution, for recovering nickel in an effectively utilizable form as a raw material of nickel industry material, by separating efficiently impurity elements of iron, aluminum, manganese, etc., from the sulfuric acid aqueous solution containing nickel and cobalt, and the impurity elements, iron, aluminum, manganese, etc. The method comprises the following steps: subject the sulfuric acid aqueous solution to oxidation neutralization treatment; then subject the solution to neutralization treatment, and separate and recover mixed hydroxides containing nickel and cobalt; subject the mixed hydroxides to dissolution treatment in a sulfuric acid solution having a concentration of equal to or higher than 50% by mass; subject the concentrated solution to solvent extraction treatment, using a phosphate ester-based acidic extraction agent; add a neutralizing agent to the resultant extraction residual liquid; subject the solution to the neutralization treatment, and separate and recover nickel hydroxide generated.
    • 一种从硫酸水溶液中回收镍的方法,用于以有效利用的形式回收镍作为镍工业材料的原料,通过将铁,铝,锰等的杂质元素从含有 镍和钴,以及杂质元素,铁,铝,锰等。该方法包括以下步骤:将硫酸水溶液进行氧化中和处理; 然后对溶液进行中和处理,分离回收含镍和钴的混合氢氧化物; 将混合氢氧化物溶解在浓度等于或高于50质量%的硫酸溶液中; 采用浓缩溶液进行溶剂萃取处理,使用磷酸酯类酸性提取剂; 向所得萃取残余液体中加入中和剂; 对溶液进行中和处理,并分离并回收生成的氢氧化镍。
    • 6. 发明申请
    • METHOD FOR RECOVERING NICKEL FROM SULFURIC ACID AQUEOUS SOLUTION
    • 从硫酸水溶液中回收镍的方法
    • US20110135547A1
    • 2011-06-09
    • US13057683
    • 2010-02-02
    • Hiroshi KobayashiHirofumi ShojiNorihisa TokiKeiji KudoTatsuya Higaki
    • Hiroshi KobayashiHirofumi ShojiNorihisa TokiKeiji KudoTatsuya Higaki
    • C01G53/04C01G51/04C01G51/00
    • C01G45/003C01G51/003C01G51/04C01G53/003C01G53/04C22B3/44C22B23/043C22B23/0461Y02P10/234
    • A method for recovering nickel from an sulfuric acid aqueous solution, for recovering nickel in an effectively utilizable form as a raw material of nickel industry material, by separating efficiently impurity elements of iron, aluminum, manganese and the like, from the sulfuric acid aqueous solution containing nickel and cobalt, and the impurity elements, iron, aluminum, manganese and the like.The method is characterized by comprising the following steps (1) to (5). step (1): to subject the sulfuric acid aqueous solution to oxidation neutralization treatment. step (2): then, to subject the solution to neutralization treatment, and to separate and recover mixed hydroxides containing nickel and cobalt. step (3): to subject the mixed hydroxides to dissolution treatment in a sulfuric acid solution having a concentration of equal to or higher than 50% by mass. step (4): to subject the concentrated solution to solvent extraction treatment, using a phosphate ester-based acidic extraction agent. step (5): by adding a neutralizing agent to the resultant extraction residual liquid, to subject the solution to the neutralization treatment, and to separate and recover nickel hydroxide generated.
    • 从硫酸水溶液中回收镍的方法,通过从硫酸水溶液中有效地分离出铁,铝,锰等的杂质元素,以镍工业材料的原料回收镍,以有效利用的形式回收镍 含有镍和钴,以及杂质元素,铁,铝,锰等。 该方法的特征在于包括以下步骤(1)至(5)。 步骤(1):使硫酸水溶液进行氧化中和处理。 步骤(2):然后,使溶液进行中和处理,并分离和回收含有镍和钴的混合氢氧化物。 步骤(3):使混合氢氧化物在浓度等于或高于50质量%的硫酸溶液中进行溶解处理。 步骤(4):使用浓缩溶液进行溶剂萃取处理,使用磷酸酯基酸性提取剂。 步骤(5):通过向所得到的萃取残留液中加入中和剂,使溶液进行中和处理,分离并回收生成的氢氧化镍。
    • 8. 发明申请
    • Method for scrubbing amine-type extractant
    • 洗涤胺型萃取剂的方法
    • US20090085005A1
    • 2009-04-02
    • US12232868
    • 2008-09-25
    • Hiroshi KobayashiHirofumi Shoji
    • Hiroshi KobayashiHirofumi Shoji
    • C09K3/00
    • C01G49/00C01G9/00
    • A method for scrubbing an amine-type extractant, in regeneration of the amine-type extractant supporting a chloro complex ion of a metal such as iron and zinc, which easily accumulates in the amine-type extractant, in a scrubbing stage constituting a solvent extraction step, which method is capable of efficiently removing a chloro complex ion of the metal, as well as capable of regenerating extraction capability of an extractant, so that it can be reused repeatedly as it is in the extraction stage of the solvent extraction step.A method for scrubbing an amine-type extractant (A) containing an amine added with hydrochloric acid, and an amine supporting a metal chloro complex ion, in a scrubbing stage constituting a solvent extraction step, characterized by substituting a chloride ion of the amine, which is added with hydrochloric acid, with sulfuric acid ion, by bringing the amine-type extractant (A) into contact with a sulfuric acid solution with a concentration of 3 to 10 N, and subsequently, by eliminating a metal by bringing the substituted amine-type extractant (B) into contact with water.
    • 在构成溶剂萃取的洗涤阶段中,用于洗涤胺型萃取剂的方法,在再生含有容易积聚在胺型萃取剂中的金属如铁和锌的氯络合物离子的胺类萃取剂的再生中, 步骤,该方法能够有效地除去金属的氯络合离子,以及能够再生萃取剂的萃取能力,使得其可以在溶剂萃取步骤的萃取阶段中重复使用。 在构成溶剂萃取步骤的洗涤阶段中,洗涤含有加入盐酸的胺的胺型萃取剂(A)和负载金属氯络合物离子的胺的方法,其特征在于用胺的氯离子代替, 通过使胺型萃取剂(A)与浓度为3至10N的硫酸溶液接触,然后通过将取代的胺除去金属,通过硫酸离子加入盐酸 型提取剂(B)与水接触。
    • 9. 发明授权
    • Method for scrubbing an amine type extractant after stripping
    • 剥离后洗涤胺型萃取剂的方法
    • US07959881B2
    • 2011-06-14
    • US12458599
    • 2009-07-16
    • Hirofumi ShojiHiroshi Kobayashi
    • Hirofumi ShojiHiroshi Kobayashi
    • B01D11/00
    • C22B23/0476C22B3/001Y02P10/234
    • The method for scrubbing an amine type extractant after stripping to be able to regenerate the same so that the amine type extractant can be repeatedly reused as it is in the extraction stage in the solvent extraction process, when an amine type extractant is regenerated by scrubbing an amine type extractant (A) containing an iron and a zinc chloro complex ion obtained by back extracting a cobalt with a hydrochloric acid aqueous solution from the amine type extractant after extracting a cobalt.The method is characterized by comprising the procedures of the following (1) to (3). (1) an amine type extractant (B) is obtained by adding an aqueous solution containing a sulfite ion to an amine type extractant (A) and stirring the mixture and reducing a ferric (III) chloro complex ion to divalent. (2) an amine type extractant (C) is obtained by adding an aqueous solution containing an oxidizing agent to the amine type extractant (B) and stirring the mixture and oxidizing a sulfite ion to sulfate ion. (3) an amine type extractant removed an iron and a zinc is obtained by adding an aqueous solution containing a chloride ion to the amine type extractant (C) and stirring the mixture and replacing a sulfate ion with chloride ion.
    • 在汽提之后洗涤胺型萃取剂以使其能够再生的方法,使得当溶剂萃取过程中胺类萃取剂可以重复使用时,在萃取阶段,当胺类萃取剂通过洗涤 胺萃取剂(A),其含有铁和氯化锌络合物离子,其通过在萃取钴后从胺型萃取剂中用盐酸水溶液反萃取钴而获得。 该方法的特征在于包括以下(1)至(3)的步骤。 (1)通过向胺型萃取剂(A)中加入含有亚硫酸根离子的水溶液并搅拌该混合物并将三价铁(III)络合物离子还原为二价,得到胺型萃取剂(B)。 (2)通过向胺型萃取剂(B)中加入含有氧化剂的水溶液并搅拌该混合物并将亚硫酸根离子氧化成硫酸根离子,得到胺型萃取剂(C)。 (3)通过向胺型萃取剂(C)中加入含有氯离子的水溶液并搅拌该混合物并用氯离子代替硫酸根离子,得到除去铁和锌的胺型萃取剂。
    • 10. 发明申请
    • Method for scrubbing an amine type extractant after stripping
    • 剥离后洗涤胺型萃取剂的方法
    • US20100032382A1
    • 2010-02-11
    • US12458599
    • 2009-07-16
    • Hirofumi ShojiHiroshi Kobayashi
    • Hirofumi ShojiHiroshi Kobayashi
    • B01D43/00
    • C22B23/0476C22B3/001Y02P10/234
    • The method for scrubbing an amine type extractant after stripping to be able to regenerate the same so that the amine type extractant can be repeatedly reused as it is in the extraction stage in the solvent extraction process, when an amine type extractant is regenerated by scrubbing an amine type extractant (A) containing an iron and a zinc chloro complex ion obtained by back extracting a cobalt with a hydrochloric acid aqueous solution from the amine type extractant after extracting a cobalt.The method is characterized by comprising the procedures of the following (1) to (3). (1) an amine type extractant (B) is obtained by adding an aqueous solution containing a sulfite ion to an amine type extractant (A) and stirring the mixture and reducing a ferric (III) chloro complex ion to divalent. (2) an amine type extractant (C) is obtained by adding an aqueous solution containing an oxidizing agent to the amine type extractant (B) and stirring the mixture and oxidizing a sulfite ion to sulfate ion. (3) an amine type extractant removed an iron and a zinc is obtained by adding an aqueous solution containing a chloride ion to the amine type extractant (C) and stirring the mixture and replacing a sulfate ion with chloride ion.
    • 在汽提之后洗涤胺型萃取剂以使其能够再生的方法,使得当溶剂萃取过程中胺类萃取剂可以重复使用时,在萃取阶段,当胺类萃取剂通过洗涤 胺萃取剂(A),其含有铁和氯化锌络合物离子,其通过在萃取钴后从胺型萃取剂中用盐酸水溶液反萃取钴而获得。 该方法的特征在于包括以下(1)至(3)的步骤。 (1)通过向胺型萃取剂(A)中加入含有亚硫酸根离子的水溶液并搅拌该混合物并将三价铁(III)络合物离子还原为二价,得到胺型萃取剂(B)。 (2)通过向胺型萃取剂(B)中加入含有氧化剂的水溶液并搅拌该混合物并将亚硫酸根离子氧化成硫酸根离子,得到胺型萃取剂(C)。 (3)通过向胺型萃取剂(C)中加入含有氯离子的水溶液并搅拌该混合物并用氯离子代替硫酸根离子,得到除去铁和锌的胺型萃取剂。